1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239bdf707d15c8b21a1fb32f503379bb23686c1e3f3e64d64e1872507be5279e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54f6d574-4c13-4e40-ae51-7bb4068ddfbc.json and https://artists.proofprofile.net/proofs/artist/54f6d574-4c13-4e40-ae51-7bb4068ddfbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a2979312f1ebd1252664f6e2f7364769d354f78cb15d84f452568baed07a6c. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LE2327923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcadb431f2677fe31a0662dc15a27eb3edde581468bd328b15b0a0f25bf0a59d9. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2368942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0c790d9f98d863338d38b6e8578457dcfd89c5fa2d38c06b1636545083888d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02925ad74bb19128580c9ce202dcc02515535e158e8ba273f4de47f733d2de5b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2344098.
A Letter To My Son BIRTHDAY EDITION! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdd25017cf1a58d4ec153af401324b059f32358b5367e1caed1e3bdb565bd0d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX4R52357331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3e6e5e6ccdb8ba9a4d0bfad4a0fd8102bfb987b39c42ebf27e6236faa845cc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX5MX2312298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464c9ca97351840d9c4d780d57ecd80f449046c0134bf41f84b02c557bb49b96. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXBDS2306963.
Hangover Music [(Houston Heights Instrumental) 2020]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28b286f513cb8bcd703ad989471a9258b9f7d47cc7cde8e5154e5ff8ea4de72. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX5MY2307955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbbdd691595f3348eb26ca6ff9621c582d336694e922d355ae5d386fb6a7101. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX5MY2355470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710f26c14155fbe129f0f0691500ae18037e8a22b5c18a9725c40a8315387976. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX89G2487062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578e98ffc842c3576b4e32a204454b3170860ce7765d97530bb16de0afb2c8d5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22480044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426ac26a61f32019285a477c1b35e5267fcc30b6e48b132a0a5d5041f448eda6. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22435830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98271f1df47a89fd1718c7c68945df81d506a9abcd352138bd9a8e8bf5f55b3. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22435829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9aa65a12b63f83a61586dbba33ed15c4395380e068ddcd076cc59c83d78b21. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22435816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d94e47e64d39d97d5d81e6425539d64f30a7a0ac19323b4cea046e6c6566eb. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22435818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c91f01737f1eb79aad59fdfb21ea87ffdaaa1e390ecfc59bb620be6659671a0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22435820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e8885fa70404dc53481795ff01af8cbf0d3f1233b051c83f669f53792c6f29. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22435821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5248472d0d3c96e9909ab1dba7715dfd8b62f6db6b23b5b32c9efbace5db7c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22435823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5eee101111cafa48ebf0eb43d7edd163d0dfbb4d1a14f44a179e4f3a2f60de. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22435824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc64092517bca9fc1cd6b633543c1c45823c324ae1048e13f93003e4983fee1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22450567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76047c38710de83bb4758d42110a6ea2f09fab7d78e94dbd83d77b99f5f63d5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22457474.
Eaglesmith and a Jesus Candle (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2662f8929468c1a65892660d0d663a7954fe8c8d1e6c76e0a3a2bf17f3815b. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62405654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76047c38710de83bb4758d42110a6ea2f09fab7d78e94dbd83d77b99f5f63d5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22457474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dacfe5b0d375a450dcc7d66bddca4922c64114b145010e9e6fdf0938d6612a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2470494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fb6716ed4d827a7bbbad54b1f0675f4e960f6ec04a99f156d9f532200f0b19. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P42435883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578e98ffc842c3576b4e32a204454b3170860ce7765d97530bb16de0afb2c8d5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22480044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de2029d9ed75e4d95ac47a4c6c9054d43c0f0a03211c70f508812c6115d20ae. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3HH2374991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923d1fa857cafebe1c2b5d5e6d0bb33d3453739705bd6f89bf017f285ed85657. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX89G2429201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc64092517bca9fc1cd6b633543c1c45823c324ae1048e13f93003e4983fee1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22450567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2662f8929468c1a65892660d0d663a7954fe8c8d1e6c76e0a3a2bf17f3815b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62405654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af26297075ab1f80363865bedfcf9047957153a13d4ccc5e9e4a971d9cc3e51. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72480345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d06d662095665397bf62266fa255577a98bb9ad2b5f79ce37e9169c052e1083. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2453179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d06d662095665397bf62266fa255577a98bb9ad2b5f79ce37e9169c052e1083. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2453179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ad786a4a4485e943bfee41a9930a2bcc48ac1e0d941877938855631019102e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282531697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f4754627c241e8bd8dc38558fb6252aaefcb7a295f3327e200cf4200740a0e. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72544356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba6766db17e789953b207a810335678c959c40c60366539d2921409206f5f75. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LE2362978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690387134db950ec7e8f57a75e46d3f1c02567354096d5fe3632ce4eb5ce46b8. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LE2348605.